RE: Rash of shared memory errors

From: Mercadante, Thomas F <NDATFM_at_labor.state.ny.us>
Date: Fri, 21 Sep 2001 05:37:22 -0700
Message-ID: <F001.00394853.20010921045023@fatcity.com>

Arn

A shared pool size of 16 Meg is not large enough. This error clearly indicates that you are out of memory.

It may be larger than your test and maintenance db, but it is not large enough for your developers.

I don't know about you, but I have more developers on my Dev instances than testers on my testing instance! My shared pool value in my Dev instance is 80Meg, and I never get this error.

Try increasing your shared pool to at least 50 Meg and see if the problem goes away.

Hope this helps

Tom Mercadante
Oracle Certified Professional

-----Original Message-----

Sent: Friday, September 21, 2001 3:55 AM To: Multiple recipients of list ORACLE-L

Hi,

Just recently, we have been frequently receiving errors like the following in our development database:

ERROR:
ORA-04031: unable to allocate 4096 bytes of shared memory ("shared pool","BEGIN
DBMS_OUTPUT.DISABLE; E...","PL/SQL MPCODE","BAMIMA: Bam Buffer")

The size of our shared pool is not too small (I think); it's larger than our test and maintenance databases, for example.

shared_pool_reserved_size            string  800000
shared_pool_size                     string  16000000

What could be causing this level of frequent fragmentation? We have been developing a new application in the database, but this has been ongoing for some months; the errors appeared only in the last week or so.

What should I be looking for to solve this?

Thanx for any advice.

-arn

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Author: Arn Klammer
INET: Arn.Klammer_at_austrac.gov.au

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Author: Mercadante, Thomas F
INET: NDATFM_at_labor.state.ny.us

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